Originally Posted by fugl
It’s only “impossible” because we choose to think of it that way. We could just as easily define “partial albinism” as “complete albinism” minus some key feature (e.g., red eyes or whatever). As always in questions of language, usage is everything, "logic" nothing.
I don't disagree, I'm just pointing than usage is not consistent nowadays, so I didn't give my opinion, it preferred to write the two ways to label such an all white individual.
This point is: if, genetically, an individual is unable to produce pigment, it is automatically all white; if it is partial, it means it can produce pigment, although it might have issues in quantity and distribution. In SOME definitions, albino is, indeed, an individual unable to produce pigment...